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This paper presents an investigation of a reinforced concrete frame bridge in Prague, Czech Republic, affected by a severe fire caused by burning tires beneath the structure. The resulting high temperatures likely influenced both the concrete and reinforcing steel, potentially reducing material strength and altering mechanical properties. A detailed assessment was carried out to evaluate the current condition of the bridge. The investigation included visual inspection, mapping of surface damage, and extraction of ...

3D concrete printing is an innovative approach to construction that enables faster, flexible and material-efficient building construction. A key factor for the broader adoption of this technology is understanding the mechanical properties of printed concrete constructions and validating them through experimental and numerical studies. This paper focuses on the determination of the mechanical properties of digital concrete with emphasis on the effect of production technology, testing and analysis of failure mechani...